WO2014124685A1 - Système de surveillance d'état et gestion d'accès pour celui-ci - Google Patents
Système de surveillance d'état et gestion d'accès pour celui-ci Download PDFInfo
- Publication number
- WO2014124685A1 WO2014124685A1 PCT/EP2013/053074 EP2013053074W WO2014124685A1 WO 2014124685 A1 WO2014124685 A1 WO 2014124685A1 EP 2013053074 W EP2013053074 W EP 2013053074W WO 2014124685 A1 WO2014124685 A1 WO 2014124685A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- monitoring unit
- data
- portable communication
- control server
- central control
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 95
- 238000004891 communication Methods 0.000 claims abstract description 94
- 230000006854 communication Effects 0.000 claims abstract description 94
- 238000012806 monitoring device Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 2
- 241000282412 Homo Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0264—Control of logging system, e.g. decision on which data to store; time-stamping measurements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2619—Wind turbines
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36371—Barcode reader
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the invention relates to a condition monitoring system including a network of distributed devices to be monitored, in particular a network of wind power plants, at least one portable communication device and at least one control server.
- Condition monitoring systems for wind turbines are widely used in the wind energy market, wherein one of the systems is known as the SKF WindCon system.
- the human service worker may mix up a service schedule for one turbine with the service schedule for another turbine, store notes, images, sound files in the central data server under the wrong turbine identification number or even forget to store the data collected or images taken during the inspection entirely.
- the service worker is provided with a schedule for his service or maintenance works when he leaves his office or workshop and may reach the turbine hours of even days later. As a consequence, his schedule might be outdated and incomplete. Since regular mobile telecommunication networks are usually not available e.g. in off-shore wind energy parks, calling or alerting the service worker via telephone may not be possible or, when using satellite communication, very expensive. Meanwhile, most of the modern wind turbines are provided with monitoring units installed in the nacelle of the wind energy plant and provided with a fixed wire-bound communication link to a central control server storing data collected by various sensors mounted in critical points of the turbine for monitoring purposes. This fixed communication link may be e.g. a standard telecommunication cable or the like, which may be guided in a common channel with the power lines.
- the invention seeks to avoid the above problems by making use of the communica- tion link between the monitoring unit installed on-side and the central control server as detailed in the independent claims. Further features and favorable embodiments are defined in the dependent claims and in the specification.
- the invention starts from a condition monitoring system including a network of distributed devices to be monitored, at least one portable communication device and at least one central control server.
- the devices to be monitored could be wind turbines, distributed devices on a large factory site or any other network of remote devices to be controlled centrally.
- the portable communication device could be a laptop computer, a cellular phone, a tablet computer or any other electronic device capable of exchanging electronic data with the network to be monitored.
- the devices to be controlled are provided with at least one sensor for measuring condition data of the device.
- the sensors may include temperature sensors, vibration sensors, acceleration sensors, rotation sensors, pressure sensors, cameras or any other suitable sensors used for monitoring mechanical, electromechanical or electronic devices.
- the devices to be monitored include a monitoring unit for receiving and processing the condition data from at least one sensor, wherein the communication link between the devices to be monitored and the central control server is established via the monitoring unit.
- the monitoring unit is configured to send the processed condition data of the pertinent device to the central control server in combination with identification data for identifying the device such that the central control server may unambiguously identify the device from which the data originates and store it in connection with the device identification number in a suitable database.
- the monitoring unit is equipped with a communication interface for connecting a portable communication device to the monitoring unit.
- the communication interface may be a wireless or wire-bound communication interface as further detailed below.
- the portable communication device may in particular be equipped with a scanning device for scanning a computer-readable code provided on the or next to the monitoring unit.
- the scanning device may be a camera, an infrared sensor or barcode scanner, an RFID-scanner or the like.
- the computer-readable code should be provided on the device or in a distance of at most 5 m so as to be immediately visible for a service worker.
- the portable communication device comprises application software configured to generate access information for establishing encrypted data connection with the monitoring device based on the computer-readable code.
- the computer-readable code e.g. a barcode or a QR-code
- the arrangement enables an automated connection while at the same time ensuring at least a two-fold security control including, firstly, the control of the physical access to the proximity of the device, e.g. the access to the nacelle of the wind turbine and the requirement that the dedicated application software capable of deciphering the computer-readable code and generating access data such as user name, password or/and encryption keys based on that code.
- the access information need not be distributed or made available outside the software.
- a wireless interface such as a Bluetooth interface or W-lan interface
- access to the monitoring device by unregistered communication devices outside of the nacelle of the wind turbine may thus be safely avoided.
- the nacelle of the wind turbine will further act as a Faraday cage screening the signals from inside the nacelle.
- the security level can be further increased when the computer- readable code is provided in an access-restricted area in the device or near the device to be monitored.
- the monitoring device may be equipped with a housing having a door which is openable with a key, wherein the computer-readable code may be arranged inside the door such that it is mandatory to have a (physical) key to access the code for generating the access information and to establish the connection.
- the easy and basically fully automatic connection is particularly useful in the field of wind turbine monitoring because the service works include access by service workers of various professions, nationalities and different companies.
- distributing the password to all the potential service workers involves complex logistics and is a security risk.
- distributing the software application is much easier to manage and the access rights granted in this way may be limited in scope or time in an easy way.
- the monitoring unit is configured to enable data exchange between the central control server and the portable communication device by making use of the communication connection.
- This data exchange may be controlled by the monitoring system and be subject to a further access control, e.g. the requirement to provide a further password and/or user name allowing for direct access to the central control server.
- Enabling data exchange may include downloading device information from the central control server, wherein the monitoring unit may be configured to add the identification data to the download request triggered by the portable communication device such that it is always ensured that the device information relating to the correct device is downloaded.
- the data exchange may include uploading data generated by the portable communication device to the central control server, wherein the monitoring unit may be configured to add the identification data to the uploaded data such that the data uploaded via the monitoring unit is surely stored in the data section pertaining to the correct device and nothing is mixed up.
- Data to be uploaded may include photographs taking by parts of the device, in particular wear parts, sound files with voice news or noises of the device recorded by the portable communication device, movies, written notes or the like.
- the communication interface is preferably a short range wireless interface, wherein the expression "short range” refers to a range of less than 40 m, preferably 20 to 30 m.
- the communication interface may be a W-lan or Bluetooth interface.
- the application program stored in the portable communication device may automatically give guidance to scan or otherwise read the computer-readable code provided near the device once it receives signals of the communication interface.
- the communication between the portable communication device and the monitoring unit is encrypted such that the confidentiality of the data exchange is maintained.
- condition monitoring system is equipped with a buffer memory in the monitoring unit for storing data to be submitted to the central control server temporarily while the communication link is down.
- This data being temporarily stored may include the regular monitoring data recorded by the sensors as well as the additional data submitted by the portable communication device via the communication interface according to the invention.
- the invention proposes a portable communication device for use in a condition monitoring system as described above, wherein the communication device is provided with appropriate application software for establishing a communication connection to the monitoring unit and/or to the control server based on the com- puter-readable code leading the communication interface of the monitoring unit.
- the communication connection is preferably established in a fully automated way once the computer-readable code is scanned or read and includes a communication connection to the central control server via the monitoring unit.
- a further aspect of the invention relates to a method for servicing devices in a network of distributed devices of a condition monitoring system as described above, the method including the steps of scanning a computer-readable code provided on the or next to the monitoring unit, generating access information for establishing an encrypted data connection between the portable communication device and the monitoring device based on a computer-readable code, establishing a communica- tion connection between the portable communication device and the monitoring unit and/or the central control server, and exchanging data between the portable communication device and the monitoring unit and/or the central control server.
- Fig. 1 is a schematic view of an off-shore wind turbine in a large area wind energy park and of a monitoring system for monitoring the turbines in this park.
- Fig. 2 is a schematic view of a monitoring unit installed inside the nacelle of the turbine of Fig. 1 and of a tablet computer as a portable communication device.
- Figs. 1 and 2 illustrate a condition monitoring system and a method according to the invention.
- the condition monitoring system includes a network of distributed wind turbines 10 as a network of distributed devices to be monitored and a central control server 12 located in a control room of the network, which may be on the land, whereas the turbines 10 are installed off-shore in this example.
- the turbines include a nacelle 14.
- the nacelle 14 is a housing receiving a generator, bearings and transmission gears (not shown) necessary for the operation of the turbine 10 and for generating electricity out of the wind power.
- a sensor 18 for measuring the temperature of the generator (not shown) as well as other temperature sensors, rotation sensors, vibration sensors and acceleration sensors are mounted at critical points of the turbine 10 inside and/or outside the nacelle 14 for monitoring purposes.
- the sensors 18 are connected to a monitoring unit 20 mounted inside the nacelle 14, which records and processes the sensor signals received from the sensors 18.
- the monitoring unit 20 includes a processor 21 capable of performing various signal processing algorithms such as time wave form analysis, vector analysis, real-time Fourier transforms, digital peak enveloping, integration/derivation both in time and frequency domain, Windowing, etc. as well as the possibility to implement user- formulated mathematical equations based on the obtained results.
- the results are compared with threshold parameters for triggering alarm signals. Cable fault and sensor fault detection systems are also implemented.
- the sensor input interfaces of the monitoring unit 20 include multiple analog inputs as well as digital inputs.
- the monitoring unit 20 is provided with Ethernet interfaces connected to a communication wire forming a communication link 22 to the central server 12.
- the communication link uses TCP/IP.
- various other interfaces such as an RS 232 service interface for updating the firmware of the processor 21 of the monitoring unit 20 or for reading out data on a solid state memory device 23 of the monitoring unit etc. is also provided.
- the invention proposes to provide, preferably in addition to the above, a communication interface 24 for connecting a portable communication device 26 to the monitoring unit 20, wherein "connection" means data exchange connection in this context.
- the service staff may enter the nacelle 14 of the turbine 10 in order to execute service and maintenance work on a regular basis.
- the standard procedure in the prior art is to provide the service workers with checklists, a service schedule or the like on paper, wherein the service worker notes his or her observations on the paper, takes photographs of critical components, wear parts or the like using a portable camera and the thus collected information has to be manually added to a database of the wind turbine system maintained in the server 12.
- the checklists or service schedules are prepared before the service worker leaves his office.
- the invention proposes that the service workers should use, as a replacement for the paper documents or in addition to these, a portable communication device 26 such as a tablet computer, a smart phone or a notebook computer. Fig.
- FIG. 2 illustrates the case where a tablet computer 26 is used as the portable communication device and wherein the communication interface 24 is a short-range Bluetooth interface.
- the expression short-range is to be interpreted in the context of the application so as to safely cover the typical distances of the service worker to the device to be monitored but preferably not overlapping with the range of wireless communication interfaces in neighboring devices to be monitored.
- the signals of the wireless communication interface 24 can be received inside the nacelle 14, at most at the access platform at the bottom of the turbine tower, such that the range should be of the order of the height of the tower.
- the monitoring unit 20 is arranged in a wall-mounted box in the embodiment of Fig. 2 and a computer-readable code 28 in the form of a QR-tag is provided as a sticker on the door of a monitoring unit 20.
- a dedicated application software installed on the portable communication device 28 notifies the holder of the device 26 that wireless access to the monitoring unit 20 is available and gives instructions on how to create the connections.
- the communication interface 26 may start sending signals only upon manual activation by the service staff. These instructions may be provided in a language chosen in the user settings of the portable communication device 26 and include the information that the computer-readable code 28 is provided on the front door of the monitor unit 20 and that the user should scan the code 28 using a built-in camera 30 of the portable communication device 26 as a scanning device.
- the application software in the portable communication device uses the code scanned by the camera 30 to generate a password or other kind of access information (encryption keys, user name or the like) for establishing an encrypted data connection with the monitoring device 20 in a fully automated way.
- the monitoring device 20 may establish a further new connection to the central control server 12 so as to upload and download data files.
- This direct connection to the central control server 12 may require the manual input of additional access information such as user name and/or password by the service worker.
- the communication access to the monitoring unit 20 as described above is highly secure because the computer-readable code 28 is provided in the nacelle 14, which is an access-restricted area which is usually not accessible for unauthorized personnel.
- the application software on the portable communication device 26 is mandatory for the establishment of the connection and the computer- readable code 28 is not readable by humans.
- updated device information pertaining to the turbine 10 to be maintained or checked is downloaded from the central control server 12 to the portable communication device 26 and a service checklist or service schedule is automatically created or updated on the device 26.
- the device 26 includes a microphone and the possibility to record voice notes or noise of the generator for documentation purposes as well as the camera 30, which can be used for taking images of parts of interest, e.g. wear parts, damaged parts or the like. Further, notes may be taken in the electronic checklist stored in the device 26 or elsewhere.
- the thus produced data files, i.e. image files, sound files or text files with notes may be uploaded to the central control server 12 automatically or upon request by the user.
- the user is prompted upon saving the file whether or not he wishes to upload the file to the central control server 12. If he agrees, the data files are transferred to the monitoring unit 20 via the communication interface 24 and the monitoring unit 20 creates a data packet with a header including the device identification number identifying the turbine 10 being checked, the time and the date and optionally identification information of the service worker such as his name and corporate affiliation. Due to the automated upload via the monitoring unit 20 in combination with a device identification number, appropriate processing the central control server 12 is ensured and storing files such as images of one turbine 10 under the identification number of another turbine may be safely avoided. In this respect, the feature that the communication between the portable communication device 26 and the control server 12 takes place via the monitoring unit 20 and has major advantages.
- the upload of data files may be done file by file or in a consolidated way as a packet upon completion of the service or maintenance works.
- the possibility to download data from the central control server opens the possibility to obtain not only real-time data from the monitoring unit 20 but also long-time trends or comparisons with other turbines 10 nearby which are not available in the local monitoring units 20 of the respective devices.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Selective Calling Equipment (AREA)
- Wind Motors (AREA)
- Telephonic Communication Services (AREA)
Abstract
L'invention concerne un système de surveillance d'état pour un réseau de dispositifs distribués (10), le système comprenant au moins un dispositif de communication portable (26) et au moins un serveur central de commande (12), chacun des dispositifs (10) étant doté d'une unité de surveillance (20) permettant de recevoir et de traiter les données d'état d'au moins un capteur (18) et d'un lien de communication (22) entre l'unité de surveillance (20) et le serveur central de commande (12). Le serveur central de commande (12) est configuré pour stocker les données d'état combinées auxdites données d'identification. Selon l'invention, l'unité de surveillance (20) comprend une interface de communication (24) permettant de connecter le dispositif de communication portable (26) à l'unité de surveillance (20) et le dispositif de communication portable (26) est doté d'un dispositif de lecture (30) permettant de lire un code lisible par ordinateur (28) situé sur l'unité de surveillance (20) ou à côté de celle-ci. Le dispositif de communication portable (26) comprend un logiciel application configuré pour produire des informations d'accès permettant d'établir une connexion de données cryptée avec le dispositif de surveillance (20) en fonction du code lisible par ordinateur (28).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2013/053074 WO2014124685A1 (fr) | 2013-02-15 | 2013-02-15 | Système de surveillance d'état et gestion d'accès pour celui-ci |
EP13704446.7A EP2956832A1 (fr) | 2013-02-15 | 2013-02-15 | Système de surveillance d'état et gestion d'accès pour celui-ci |
CN201380072616.3A CN104981745A (zh) | 2013-02-15 | 2013-02-15 | 状况监视系统以及因此的访问控制 |
US14/765,846 US20150377214A1 (en) | 2013-02-15 | 2013-02-15 | Condition monitoring system and access control therefore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2013/053074 WO2014124685A1 (fr) | 2013-02-15 | 2013-02-15 | Système de surveillance d'état et gestion d'accès pour celui-ci |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014124685A1 true WO2014124685A1 (fr) | 2014-08-21 |
Family
ID=47716057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/053074 WO2014124685A1 (fr) | 2013-02-15 | 2013-02-15 | Système de surveillance d'état et gestion d'accès pour celui-ci |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150377214A1 (fr) |
EP (1) | EP2956832A1 (fr) |
CN (1) | CN104981745A (fr) |
WO (1) | WO2014124685A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109723608A (zh) * | 2017-10-31 | 2019-05-07 | 上海泰胜风能装备股份有限公司 | 风力发电机 |
WO2022086637A1 (fr) * | 2020-10-22 | 2022-04-28 | Cornell Pump Company | Système de surveillance et de commande d'équipement à distance |
CN114997644A (zh) * | 2022-05-31 | 2022-09-02 | 中国能源建设集团广东省电力设计研究院有限公司 | 海上风电场运维调度方法、系统、计算机设备和存储介质 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011058102A2 (fr) * | 2009-11-13 | 2011-05-19 | Schaeffler Technologies Gmbh & Co. Kg | Suivi automatisé par gps d'unités de surveillance mobiles |
US9870236B2 (en) * | 2012-06-04 | 2018-01-16 | Vestas Wind Systems A/S | Control system for a wind turbine |
US20150370236A1 (en) * | 2013-02-15 | 2015-12-24 | Aktiebolaget Skf | Condition monitoring system and method data exchange |
WO2014124683A1 (fr) * | 2013-02-15 | 2014-08-21 | Aktiebolaget Skf | Système de surveillance d'état et procédé de création et d'actualisation d'informations de service |
DE102015106366B4 (de) * | 2015-04-24 | 2019-05-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Bestimmung einer Position von Fehlstellen oder Schädigungen an Rotorblättern einer Windkraftanlage in eingebautem Zustand |
CN106054915A (zh) | 2016-05-24 | 2016-10-26 | 北京小米移动软件有限公司 | 无人机的控制方法及装置 |
WO2018010745A1 (fr) * | 2016-07-14 | 2018-01-18 | Your Global Solution Aps | Procédé de gestion à partir d'une station centrale de l'accès dans un site devant abrite une ou plusieurs éoliennes et système associé |
EP3460649B1 (fr) * | 2016-11-16 | 2021-03-31 | Mangoslab Co., Ltd. | Procédé et dispositif pour connecter une imprimante a un client |
US10670567B2 (en) | 2017-04-11 | 2020-06-02 | General Electric Company | Communication with testing systems |
DE102017122283B3 (de) | 2017-09-26 | 2018-09-20 | EnBW Energie Baden-Württemberg AG | Überwachung eines Energieparameters in einer Verteilstation |
US20190116184A1 (en) * | 2017-10-17 | 2019-04-18 | General Electric Company | Assembly and method for accessing secure networks using optically-sensed information |
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US20040093102A1 (en) * | 2000-10-10 | 2004-05-13 | Sami Liiri | Method and system for maintenance of a production plant |
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US20100280872A1 (en) * | 2009-08-27 | 2010-11-04 | Scholte-Wassink Hartmut | Methods and systems for monitoring and scheduling operations and maintenance activities |
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DE10032774A1 (de) * | 2000-07-06 | 2002-01-17 | Endress Hauser Gmbh Co | Feldgerät |
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2013
- 2013-02-15 US US14/765,846 patent/US20150377214A1/en not_active Abandoned
- 2013-02-15 WO PCT/EP2013/053074 patent/WO2014124685A1/fr active Application Filing
- 2013-02-15 CN CN201380072616.3A patent/CN104981745A/zh active Pending
- 2013-02-15 EP EP13704446.7A patent/EP2956832A1/fr not_active Withdrawn
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US20040093102A1 (en) * | 2000-10-10 | 2004-05-13 | Sami Liiri | Method and system for maintenance of a production plant |
US20090266160A1 (en) * | 2008-04-24 | 2009-10-29 | Mike Jeffrey | Method and system for determining an imbalance of a wind turbine rotor |
US20100280872A1 (en) * | 2009-08-27 | 2010-11-04 | Scholte-Wassink Hartmut | Methods and systems for monitoring and scheduling operations and maintenance activities |
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WO2022086637A1 (fr) * | 2020-10-22 | 2022-04-28 | Cornell Pump Company | Système de surveillance et de commande d'équipement à distance |
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Also Published As
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CN104981745A (zh) | 2015-10-14 |
US20150377214A1 (en) | 2015-12-31 |
EP2956832A1 (fr) | 2015-12-23 |
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